Note: Descriptions are shown in the official language in which they were submitted.
16654
I
~3AC1iGROUND ~ND 013JECTS OF T111. lNv~ rIoN
! The present invention relates in ~cncral to time loeks
. for bank vaults and sales and similar timed lli(3h seeurity
l devices for seeurity recet)taeles and morc partieularly to
¦¦ tLIe spceific structure of manually settable timer units or
clockwork n~oveme1lti uscd in bank vault time locks to set the
lockia~g l~our; for ~1~e vault or safe door or thc time the
saLe or vauLt is desired to be capable of being opened thc
following clay to maintain the vault or safe securely locked
o ¦! during certain predetermined lock-out hours such as the
i pcriod betwcen da~ly bank elosing and subsequcnt ciay OpenincJ.
1 ~1eretofore time loeks have been in common wiàespread
use to place bank vaults and similar safes security s?aces
l I and the like in a lock-out eondition rendering them disabled
lS frorm bcing opcned in tlle normal way by bank Iersonnel as by
prol(r dialing of a eombination lock during certain chosen
11 timcs such as between the bank closing time one day and its
i1 openincJ time the ne~t day. In recent years these time
¦1 loeks have customarily involved a box or casc ha/ing two or
2C j1 tllrec Limer units or cloekwork movcm~ents to providc back-up
j1 rcdunclancy in case one or two of the timer units fail clch of
.~¦ wl1ich h.1s a settable dial graduat:ed in hours and set from a key
insertable into openings in the timc lock case to indieate the
!1 dcsired locking hours or time lapsc betwccn SettinCJ of the timer
!~ and tlle time of oL~eni1lg of the vault thc ne~t workLnq day. ~ach
timcr u~ : or movcme1lt customarily has a main spri.ncJ and (1car
¦1 systcM to concurrenLly wind thc mai1l drive sprin; ~or lhc clock-
work mec11anism and dri.ve tlle dial in a winc~-up or i.ncrcasi1lcJ
l:ime ~.a1)sl: di.recti.o1l rclat:ive to a stati.onary Ljointcr or i n(lc~
l~i
il , .
' 1,
~ _ I .
~ .
. ~' ' ' .: ' ~
- ~ ~
1~6654
Il mark ancl thc dial usual1y has a trip pin or stul fixed on
¦¦ thc dial face to enc3a(3e an abutmcnt surLacc on tlle end of a
ric3id arm extclldill3 from a transvcrsely movablc carrier
when the as;oclated ~:imcr unit dial timcs out to zcro time
and move thc carrier to a re1ease positioll allowing a snubber
bar connected in the usual manner to tlle bolts for thc vault
I cloor a.s by con:lectioll to a common controL bar for the bolts
! to rctract to wllockin(J position. The carrier typically has
l thrcc of such rigid arms extending to abutment ends located
1 at thc z.ero time positions Eor thc trip pins of each of thc
! three dials of thc three timer units so that any one of the
¦¦ thrcc trip pins whe~n it enga3es tlle abutmcllt end surface of
thc associatcd cxtension arm of tlle carricr will push tllc
ll carrier to.~ard its release position by tlle .Eorcc of the
~! storcd ener3y in the associated main drive sprinJ to unlock
tlle ti.me lo_k.
It will be apprcciated that rc1iance on thc Eorce
! excrtcd by such a rigic~ dial trip pin on tllc abutment cnd of
l¦ the extensi.on arm of the time lock carrier as the trip pin
¦! is driven by its associ.ated main drivc sprin3 to and
!I below the zcro time posi.tion introduces smal.l variations in
l the exact time at uhich the timc lock is relea;cd to unlocked
; positioll. Slight variations in dimensiolls due to wear
¦ durin(J use mallufclcturill3 tolcrances and thc like can produce
l c~iffcL-ellccs of up to ten minutcs or more in thc c~act ti:nc the
¦~ carrier is ;hi.Etccl ~u]ly to rcleaie or unlockccl positioll WllCIl
thc ulll.ock.ill(J or rclca-ie movcmcllt ol tllc C.ll:.L'i-`l' is ~ICI)Cn(1CI1I: 011;
i.ts bcillg pusllccl by the dial trip pin of thc t.illlcr unit clLivcn
by Lhc mnln ~ vc sp~in~J ~ th Limor un~t. Whllo Lhis ~ao
, .
-
,
54
been a recognized problem with such time locks for many
years, the trip pin ixed on the timer unit dial continues
to be the dominant mechanical system for moving the carrier
to unlocking position and I am aware of no modification to
more positively and immediately force the carrier to unlocking
position repsonsive to the dial reaching zero time.
An object of the present invention is the provision
of a novel timer unit of the settable dial type for time locks
wherein a snap-action kicker or activator arm is provided
on the dial mechanism which is cocked and latched during setting
of the dial and is released to abruptly kick the carrier of
the time lock to unlocked position when the dial times down
to zero time.
One aspect of the present invention resides in
a timer unit of the settable dial type for a time lock to
engage and shift a carrier assembly of the time lock from
a locking position holding a snubber bar blocking mechanism
in blocking position to a release position releasing the blocked
mechanism to an unlocking position. The timer unit has a
rotatable time lapse indicating dial and aclockwork mechanism
intercoupled with the dial including a gear train and escapement
mechanism and a drive spring for the gear train. A manual
setting means is provided for the gear-train and dial including
a key operable main stem coupled to the drive spring to wind
the same and coupled to the dial to adjust the dial to time
lapse positions indicating a desired future unlocking time
for the time lock. Snap-action trip means is provided for
engaging and suddently shifting the carrier to release position
at zero time on a dial.
tm/~V~
. .
;65~L
Another aspect of the invention resides
in a time lock for bank vault doors and the like comprising
a housing,a plurality of timer units of the settable dial
type mounted in the housing and a carrier assembly movably
mounted in the housing for movement between a first locking
position and a second release position. Snubber bar blocking
means is provided in the housing movable between a snubber
bar blocking position and a release position, and a control means
therefore is releasably held by the carrier assembly for
holding the blocking melans in blocking position while the carrier
assembly occupies the locking position. Each of the timer units
has a rotatable time indicating dial and a clockwork mechanism
intercoupled therewith including manual setting means for
rotating the dial to the desired time lapse indication,
and there is provided snap-action carrier trip means.
The snap-action carrier trip means of the
present invention includes a spring driven kicker arm supported
for movement forwardly adjacent the face of the dial through a
trip stroke between a cocked position and a disarmed
position. Latch means is provided for releasably
latching the kicker arm in the cocked position when the dial
occupies time indicating positions above zero time. Release
means is driveh by the clockwork mechanism for activating the
latch means to release the kicker arm in spring forced
condition from the cocked position when the dial reaches zero
time to cause the kicker arm to be abruptly kicked by the spring
force thereon against the carrier assembly for abruptly shifting
the carrier assembly to release position.
In a specific embodiment of the invention the
snap-action kicker arm is journalled on the center spindle for
~m/l~ -4a-
11~66~4
the dial and is associated with a spring system and a cam and
latch lever mechanism to maintain the kicker arm in a cocked
position until the dial times down to zero time and thereupon
releases the arm to be kicked against the carrier by a spring
through a trip stroke and move the carrier to unlocking
position.
Another long standing problem with time lock
timer units as conventionally made is that the gearing. system
from the main spring and setting key spindle which is coupled
to the timing gear train and to the dial, by which the dial
is set to the desired time delay setting, permits operation
of the key only in the wind-up or increasing-time direction.
tm/f~3 -4b-
.
,-
;65~ .
: 11
l`hu-; if tl)- oper.ltor inadv( rtently advallces tlle dial settin~
in a wind-up dircctioll to a time above or ].onger tllan tlle
timc 1apsc sct:tillg clcsired (as wherc! a 12 hour delay settillg
I is clesired alld thc dial is overset to 14 or 15 hours) the
5 1 convc ntiollal timcr unit does not have the capability of
allowillc~ thc opcrator to manually turn the kcy in a willcl-
dowll clirectioll to r cduce t:he scttill~J and the only way Lor
thc clial to bc movc(l clown to tllc pl.oper time setting is Eor
Ii it to timc-dowll by thc main drive sprinc3 and clockwork
10 il ~Jcarin~J.
Anotllc?r object of the present invention therefore is
¦j the provisicjll of a novel timer unit for time ].ocks wllcrcill
¦ the time dei.ay settinc~ gearin~ includes means permittillcJ the
sCttincJ key to be operated i n a wind-down or reducincJ timc
15 1l lapse dircction as wel1 as in an increasing time lapse
~ clirectioll to pcrmit thc operator to reduce the di.a1 time
¦ settin~J whell dcsired to correct for incorrcct sc ttinys of
l the dial to e.~;cess or too-hig}l time delay scttin(ls.
¦ Other objects advantayes and capabiliti.es of the present
20 ¦ i nvention will bccome apparent from the fol1O~Jill~J dctai lecl
descriptioll taken in conjul-ctioil witll thc accompallyill(J clrl~ Js
showin~J a prcferred embodiment o:E thc inv:!ntioll.
, . . .
uR:r~ D~s~R:rl)lrIoN Ol~ 'L`IIL P-[GURI`S
. ~.
FIGURI l is a Eront perspective view oE a ti.me lock Eor
~sa.Ee; vau.LI s ancl sim.i.lal ellc:losllrc s cml~odl in(J the present
VCIltiOIl;
i I IGUR~; 2 i.; a Cront elevatioll view thereof witll parts of
t:he Eront covcr allcl o.l: the carrier mcmbel brokon away;
-5-
!
!~ 66'~
!l
I'I~UI~I. 3 is a verLieal trallsvcrse scetion vicw thcreoE
taken alonc~ thc linc 3-3 oE Fig. 2;
¦ FIGUI~L 4 is a EracJmentary side elevation vicw to
¦ en]argcd scalc oE tlle elockwork gc-arillg train and clutch
mechanism portions oE the timcr unit loeatcd between the
front and rcar Eramc panels shown to enlarged seale;
l'IGUR~ 5 is a vcrtieal seetion vicw taken along the
line 5-5 oE Flg. 4 showincJ the clockwork cJcarillc3 associated
!I with the escapemcnt wheel Eorminc3 a gear train bctween the
¦ main sprin(J and thc cscapement;
FIGURl. 6 is a front elevation view oE the timer or
¦ clockwork unit with the magnifier and dial removed shown in
the unwound condition;
Ij l`IGUI~I' 7 is an e~plodcd perspeetive vicw of the levcr
'I eam and snap-ac~ion trip arm earrier associated with the
¦ dial port:ion for regulating the position of the trip arm;
I l`IGUlE g is a view similar to Fig. G with the dial
! and dial gear showll in broken lines with the timcr in set
I¦ condition beyond tlle trip spring arming pOSLtiOn;
¦~ FIGURl 9 is a Eragmentary section vicw taken along the
line 9-9 oE Fig. 10;
l FlGURE 10 is a EracJmentary side c~lcvation view oE the
I portions oE the timc Ullit forwarcl of the front frame plate
¦ in~nc!cliatcly prior to re]ease of the kicker arm; and
FIGURE 11 is a El^agmcntary front elcvation view of a
I moclified carricr asselllbly with a dcaclbolt latch lever and
¦ relc;a-;e actuator thcrcEor viewcd from a 'CCtiOII planc
~ immcdiatcly Eorwardly oE the carrier.
Ij
--6--
6654 o
._.,_______ __ _ _ ______ ____ __ ____ ___
l~eferrincJ to the drawin~Js, whereill Like reEerellce
characLers desi(Jnate corresl)olldin(3 parts throu~llout the
severa1 fi(3ure-;, there is sllowll a typieal t.i.me lock, ~enera11y
inclic.lte(l by the xeferellce character 10, havin~3 a case O1^
housi.ll(3 11 of (Jene~ 11y rectan~Ju1ar bo~ 1ike form for
housi.ll~J the compc>n~:nts of the time 1Ock inc~.udin(~ the usua1
carrier a ;s~mbly 1.2 Eor norila1ly latcll~ a pusll 1ever 13 in
l! a lockill(l position ho1d.iilcJ a snu`i)bcr blr b].oc:i;in~J mechalli.sm
14 in a l)l.ocki.ll(J pOsi.tioll, tlle carricr asscmb1y beill(J mov.lblc
by a c1Ockwork mechallism actuator. In th(~ preferred embodimcnt~
threc SUCil clockwork mechanisms movemcnts or t:imer Ullits,
indicatcd c~c?llerdlly by the referc?llce character 15, are
Il providecl, each havill(~ an actuator Eor ell(~clcJirl~J an abutmellt
~¦ surfdce of tlle c irrier assellll)1y 12 a~s later descrLbed.
I' WhLle it wi11 be appreciated that only Olle of sucll cl.ockwork
¦I mecllallisms or timer units 15 is required, it is cu-itolllary to
1.l provide more than one unit, ;Isua].1y two or three SUC]l units,
¦¦ to provide a-ppropriate backup or redull(lancy in the CVCllt one
ll¦ of the timeL uni.ts fails. ~illcll tlle actuator oE one or more
of the l:imer units 15 times down to ~.ero time, it enga(J(?s
the carriel. asselllb1y al;d moves it to a re1c?ase pOSitiOIl
causin(~ the push levcr 13 ancl blockin(J mechanism 14 to free
¦ a snubl?er bar 16 to retract to un1Ockill(J pOsitioll. The snubber
I bcil: lG i.s usual1y i.nstalled on thc door or wall oC J saEe or
1~ vau1t all<l i.s conllcctcd to tlle cu-,tolllary coiltl.ol bar coolclillatillcJ
jl loc~iitl(~ IlllO( icill~J IllOV~?Ill~llt o~ le c~oo~- L~olt i i.llto .IIld
I¦ witlldra:/.l1 from sockets in thc.; comparlioil wa11 or door janlb
,
'
,1 !
16~;54
l .
¦ porti.on. The snubber b;lr ].6 ineludes an inner end portioll
whicll extcllds into a transverse hori~.ont.~l eylindrieal bore
17 i.n the time loek easing ll. In the loeked position of
the time lock, a bloekinq member 18 oeeupies tlle position
shown in FicJs. 2 and 3 bloekillcJ the micll)ortion of tlle eylindrieal '
bore 17 so that the snubber bar lG i5 bloeked in lts outwardly
projeetinlcJ c"- lockin~3 pos.itioll. Whell the bloekinc3 member 18
is retl-aeted clowllwardly, or moved clownwarclly under foree of
Illc~ravit:y, upon movement of tlle push lever 13 to the releasc-
1 or out~/ard positioil, either manually, as for emerc~elley
-release, or mc:ehanieally by transverse movement of the
earrier when one of the timers times out to ~ero, the snubber
I bar lG may be retraeted or withdrawn to e:~tend into the
¦ portion of the bore previously oeeupied by the bloeking
1I member and thus retraet -the eontrol bdr and door bolts
,¦ eonneeted to lts outer end Erom the keel)er soeketi to permit
'll openillcJ of the safe or vault door.
In one satisfaetory e.~iample, the housing or ease 11 may
¦ be a two-pieee housing formed of a main or rear housing
¦ portion ll.a ancl a front eover l~ortion llb, with the main or
I rear housing portion lla east as a one-l)ieee strueture
- l~havillcJ a rear wall 20, top and bottom walls 21 and 22, and
j¦side walls 23,24. I\:~ially alicJned al)ertures 23a,2~1a are
¦¦formc-~d in the sicle walls 23,2-1 acljaeellt the top wall 21
jaLic;lled wiLIl the sllubber bar reeeiv.i.ng bore port.ioll 17,
I,derilled by partition Eormat.ions w;.thill thc hous;n{J to provi.de
¦jan unbloe~iecl pal:ll l.~etween the apertures 23a,2-1a lor I'CCCiVi.ll(J
¦¦the loekincJ bolt or snubber bar` lG for movcmellt between projeeted
¦lor lockin~J po!iiti.on allcl retraeted or. unloekincJ pos.iti.on. The
I j _c~
ii loekinJ l~olL or in~l)ber bar as prov~oubly staLe<l is nolm.llly
p rovided on the vault or ;afe door on whiell the t.ime loek
is installed.
Thc? front eover p ortion llb of the housill l eonventiollally
5 ¦ ineludc~s an elonc~atc d eutout window L~ortion 2G tllrou9h WhiC
the dials oJ the c loekwork meehani.sms or timer units 15 may
bc viewed and a p lurllity of kcy rcccivln~cJ oycnill~Js 27 are
loeated in l l c Lront eover below the lev( 1 oE ~he window allcl
I¦ alic31led with approp:ri.ate parts o.t the three timer units to
10 !I rnanually win(lup or set the timer unit:s. /~lso thc front
~¦ eover portion Oe the easincJ may be provid?d below tile level
Il of the keyho.l.c-~s 27 with a forwardly OpC?Ilill~ rc eess eavity 28
il ~Eor aeeess to th? manu ~1 E)ush lever 13 formil-g part o~ the
Il bloekin~ meehanisrn to pcrmit one to marlually eEfeet emercJeney
15 ll re].ease t.o allow thc? loek to be opened shoukl OllC be aCCidelltall.y
I loekecl insi(le th(? vault or s.lfc?. I or e:eaml le this push
lever 13 ancL it s a ssoe.iltion with ~:he bloc kinJ member ].8 may
l! b~ of the cJerl?ral type diseIosed in c a.Llier U.S. Patent
¦¦~1,062,210 owned by the asSiJnee oE Lhe t~rc c-~nt invc?lltion
20 1! wherc in the L~ush lever here indieatc d by the rel:erenee
eharaetc?r 1.3 is in thc? form of .n elon~.JatecL lever eeterldi.ncJ
. tllroucJh a ;loL in the cdrrier asscmbly 12 alld incl.udcs an
abutment shoulder 13a Cn~Ja~Jinc; c~ boulldin~ p ortion Eor
i e eample all allJled eorner of all oversi :ed slot 29 in the
25 j ea~ rier asselmbly 12 thro~l911 which the midL ortl.on oE tlle
I¦ L~ V(-~ 3 e:;tCIlCI; wi~l.t~ L>~ v~r l~ l clo~n~ r~l~.y
¦¦ by a sL)I i.ll~J 30 to tlle po.iit ion sllowll i.n . i ;. 3. Tlle inlle.l- or
¦ rearmost end p ort ion o[ the pUSIl lever 13 rnay be eoupled
Il or eoac:t in a ;ui~able way to a pivo~-~d lever 31 or simi.lar
30 1l lln`lllbCr hdVillCJ a portion underlyincJ and bea.L-irlJ a JaillSt a meellarlism
.
16~,54
l .
I e;tenclin(3 dowllwar(lly LLOm thr blockillc-J ni~lllL)er 13 sueh as the
¦ hel(l 32a ol: the ;licle pin 32 sprinJ biase(l rlownwaLcl1y by a
sprillg 33 Erom tl-e bloekinj member l8. It wi11 be appreeiated
1~ thclt Wl1L`I1 the pivoted lever 31 is in the rlise1 pojitioll shown
Sin Fic3. 3 the eontlet portion oc l;he pivotecl lever be.lring
I clC~ l;t the head 32a oE tlle slide pin 32 li~t; the he~ci to a
pojition eausillJ the bloekinc3 membL r 18 to be in raised b1Oekinc3
I positioll withill the bore 17 cor the sllubber bar aSSUmillJ the
Il sllubL)( r bar has been shil-ted outwarclly to projeeted or loekillc3
10~ ositioll~ thus b1OekillcJ the snubber b~r ac3ainst inward movemellt
Il to un]oekinlJ posit:ioll When the usll lever 13 is mallually swuncJ
¦ upwardly to disengac3e the abutment shoulder 13a thereof l~rom the
abutinellt surEaee portion oE the lot 29 or when the earrier
Il assembly 12 is moved toward release ~osition as l.~t--er deseribed
15¦ by the timer unit the pivoted 1ever 31 wi11 be a1]owed ~o swing
downward1y to a position lowerillJ the uplr r portion o[ t11c bloek-
i in(3 member 18 from the snubber bar bore 17 and t11us permlt retrle-
tion of the snubber bar 16 to the unloekinc3 l~si tion .~n anti-
lll tamperinc3 wire 34 havinc3 its upp r -~nd Ei;ec in the blo(;cinc3
20¦¦ member 13 rmay be provided rearward1y of the pin 32 as sllowll,
¦¦ extellding clownwlrd1y t11rough a slot in the he;lcl 32a to CrlCJclC3e
the 1ever 31 when the latter is in the raised position allcl ho1d
the bloekincJ member 13 in its r.~isecl bloe ~inJ position.
1l¦ The earrier ass~mbly 12 may also be ol~ thc! eollstruetion
25¦dise1Osed in said ear1ier U S Patent 4 0G2 210 to provide a
earrier p]al:e portioll 35 11avillc3 nl)ward1y extelldillcl hooke~d arm
IexLelsion 35 Lor eaCh of tlle three timer or c1Oek Ullits~ C~CI1
llarm 3G termillltin(3 in c~ vertiec~1 ahutment surfaee 37 adal~tL-~d to
jbe ellcJa(Jed by tllr-~ aetuator of one or more of the t:imer or eloek
,1 . .
- 1 0 -
¦ I !
Il '
.
: :
i654
' 11 .
I unitC, l5. rn thc typieal prior art time loeks, this aetuator
¦ mcmber was in tllc form of a rigicl I~in projeeting forwardly
¦ from the clials of eaell of the timcr or eLoek units adaptcd
Ilto abut a~JaiIlst !hC cnd abutmeI~t sur[aec 37 of onc of the
I extcnsion aL-ms 3G oE thc earricr platc and move th(~ earricr
plate 35 laLcr.llly, toward thc ricJht as viewcd in Yig. 2,
for a suffieieIlt cIistaIlee to discnga~Jc the abutmcnt portion of
the slot 29 from tIle lever abutment shouldel 13a and free the
Ilpush lever 13 for forward or outward mov~meIlt pc~rmittin(~ -
1U ¦ 10WerinCJ GL the heacl portion 32a of the s~icle 32 suffieient
¦ to drop the bloeking member 13 downwardly out of bloekin~3
relation with the snubber bar bore 17.
The timer or eloekwork meehaIlism 15 ineludcs a eloek c3car
1¦ train and eseapemellt meehanism, generally indieatecI at 40, and
!I supL~orting framc therefore of cjeIlerally eonvcntional eonstruetion,
Il eomprising a eonventiona1 frame formed of a pair of sL~aecd
¦I reetanguIar pLates, incIieated as front plate 11 aIld back pl.Ite 42,
separated and fixed in esseIltia]ly parallel spaeed relation to
II eaeh other by spaeer posts 43 and sercws 44. Projeetin~3
~¦ rearwardly from the baek plate ~2 is a spriIl~J housincJ or barrel
!1 45 eontaiIlill-3 the main eoil spri.lg 46 WlliCIl is wound by a
!I key 47 inserttd throuc3h the key rc!eeiving openinc3 27 Eor
I¦ the assoei<lted timer unit, haviIl~ a noIl-roulld soekct whieh
¦¦ interfits over a noIl-roulld main stem 4~ on whieIl thc main
1I spl-illCJ ~1~ is moullt(~cl to windup aIld ;tore cner~Jy in the main
I; spriIl-l I:c~ provi~Ic the ope~ratiIlg c~ner~Jy [or the ek~ck mc~eIlallislll.
j~'he eIock cJc~ar LI-ain 40 inelucles a eloekwoIk meeI~Illism or
jIcIrive sL)riIlc3 main ~Jcar ~I9, sometimes reEeI-red to in thc
II cloekwork art as the lirst ~hecl, eouL)lecl by the intereIl(JagillcJ
1i
Il .
i!
11~66~i4
11
. 11
. j . ~ .
cjear tec!tll on the sueeessive CJCarS through a ~3eclr train
ineludin~J s mall E~i.nion 50 Ei~:ed on shaEt 51 havill~J a ratehet
i and pawl meehanism G4 G5 ancl a larc~e c3ear or seeolld wheel 52
I rotaLclble on shaft 51. Gc ar 52 is eouplecl to small ~inion
53 on sllart 59 hcivill~J a eluteh meellallism later deseribed,
assoei.ated with lar~e ~Jear or third wheel 55. The teetll of
. third wllec 1 or ~ear 55 enc~ac~e small pi.lliClll 5G on shaEt 57
havin~J larqe ~Jeclr or Eourth wheel 58 thel-eon whiell is mesllc d
l with mall l~lnion 59 on shaEt G0 11~1VinCJ larc~er ~ear Gl thereon
10 1 in the illustrated embodiment meshed with the small piniOII G2
¦¦ on the eseapement wheel shaft G3. The eseapemellt wheel or
¦I meellanism al.so ineluc~es a balanee wlleel in aeeordanee with
eonvelltiollal praetiee. Thus thc- main sprinc~ 4G drives the
I¦ main sL~rin~J c~ear 49 wllic}l throu~JIl the abovc clc seribed c~car
1.5 ¦¦ train and ratehet and pawl meehanism G4 65 drivc s the
shafts 51 54 57 60 ancl escaE)cment wheel shaEt 53 in a way
sueh t:hat the main sE~rincJ slowly unwi.llds at a rate aeeurately
i eontrolled by the e .eapement meellanism in a mailller well
l! understoocl in thc? e].oekmaker art. /~s illusLrated in l i~ls. 4
20 11 and 5 one oE the ~JearS or wheels of the cJear train 40 Eor
e:cample the seeolld cJear or wheel 52 is journaled Eor rotation
on shaft 5.1. and ratellet whc?el G4 is fixed on the shaft 51 to
be ell~JdcJc~cl by the tootll o.E a pawl G5 pivotecl on the cJear 52
1, '>O that thc seeolld cJc?ar 52 rotates only in a wind-down or
25 ll eOull~:c rc loekwise dil-eetioll as vie-/ed in l i.(J. 5 to transLer
c~ller~Jy ;torecl in th(~ main sL~r:in~J throu~JIl thc~ c ]oek ~Jear
j trail~ l:o thc escal~clllcn(: mcchallism.
il , ~.~
Tlle mlill stem 48 on whiell the main jc ar ~1') Eor the
~I eloek c~c~lr train i.s fi~ecl also hls a sma].ler dial drivin-J
30 I clc~ar ~,7 ~hereoll whosc~ teeth int~rri.t the teel:h oE clial c~ear
I i
--l 2--
Il .
16654
G~ lVi.ll~J tllc~ c1i~ i'9 J .i.Yed dgail1st tl1e Crollt fdee of (~e.~r
68 to MOVC` therewitl1, eausing the dial G9 to be rotated in
j eorrelated relation with th-? main stem 48 and eloek gear
l train main year 49 as the stem 48 is wounct up to set the
5 1 ciesirecl time delay or Lime lapse before the snubber bar
bloekin<3 mc mber is released to unloek thc time loek . Tlle
dial G9 earries the usual indi.eia indieatillc3 the number of
I hours the e]oek is to run be~ore aetivatin~J the earrier
j¦ assembly to unloek the time loek, and the usual mac311ifier 70
l0 1 and incleY mark or poinLer 71. are assoeiated with the time
indieatin(3 dial G9 Eor easily reading the time on the dial
f aee .
.If the eloek cJear train 40 were made in the normal manner
Il with the ratehet whc!el 64 fi~a?d on shaft 51. al1d the pawl G5
15 11 encJ<l(3illc3 the ratellet wheel G4 in a manner to rotate seeond
i gear 52 only in a eountereloekwise direetioll as v:iewed in
Yic3. S, rotation of the key 47 ancl main stem i8 is possl.ble only
, in a wil1d-up direetion eausing the di.al G9 to indie.lte
inereasi nCJ or proc3r.~as5ively cJreater time delay at the inde.~;
¦ mar;cer 7l j aeeidental setting of the timc?r urnit to a time
¦ delay c3reater than tll(? desired number of hours eould not be
i eorreetc?d by manu.ll adjustmc?nt of thc? key al1d main stell1
whiel1 eould only be rotated in the willd-up or inereasil1~J
~ time lal?sc? direetion. Ilowever, th(? timer unit of the present
25 l~ inventiol1 has l~rovi-:ion Eor such eorreetion adjustm?l1t of
!, thL rlllill stem and di.al settincJ when the di.al is incorreetly
overclriven to an e~;eessiv-? time settin.l, by provid.ill(3 a
c lutel1 meehanislll 72 a ;soeiated `~/ith th-? thircl gc ar 55,
I forlllecl of a elut(-h c1i.-;e 72a fi.Yed on the sl1al:t 5-1 along with
30 l¦ pi.l1iOI1 53, al1d a sl~ri.l1cl clise or spi.der mcmber 73 0l1 the s11.1ft 5~1
Il i - 1 3 -
, _ ,1
i654
bearing ac~ainst the third gear 55 which is journaled on shaft 54
and urging the gcar 55 resiliently against the clutch disc 72a.
With such a clutch mechanism incorporated in the clock gear
train, oversetting of the dial to a higher than intended tiMe
delay can be corrected simply by manually rotating the key 47
and main stem ~8 in the wind-down direction until the correct
time delay is indicated at the index marker. Such wind-down
or reverse direction rotation of the key and main stem
rotates the main gear 49, pinion 50 and its shaft 51, gear 52
(since it is being driven in the wind-down or timing out
direction by ratchet wheel 64 on shaft 51 and pawl 65), pinion 53
and its shaft 54 and clutch disc 72 fixed thereon, while
gear 55 and the remaining gears in the clock gear train
remain stationary or regulated by the escapemcnt mechanism.
The dial gear 68 and dial 69 carried thereon are also driven
ln a decreasing time direction during~such reverse rotation
of the main stem 47, since dial gear 68 is directly coupled
to gear 67 on the main stem.
The mechanism for effecting the snap action kicking or
tripping of the carrier to the release or unlocked position
when the clockwork gearing and dial time down to zero time
position is mounted on and extends forwardly from the front
frame plate 41, and is best shown in Figures 6 to 10.
Referring to Figures 6 to 10, there is provided between
the dial gear 68 and dial 69 and the front frame-plate 41 an
arcuately movable or angularly movable carrier plate 75
having a central opening through which is rcceivcd the
mounting post assembly 76 extending forwardly from the front frame
plate 41 to provide a post on which are rotatably supported
14-
:lii6t~4
both the carrier platc 15 and the dial gear 68 and dial 69.
A snap action kicker arm or carrier actuator 77 is also mounted
for rotatable arcuate or angular movement on the post assembly 76 by
center mounting screw 78 extending through an opening near the
inner end of the kicker arm or actuator 77 into ~he mounting
post i6. Movement of the kicker arm 77 and carrier plate 75
is coordinated by a connecting post 79 fixed to an outer end
portion of the kicker arm 77 and fixed to a p~ojection 75a
on the carrier plate.
The carrier plate 75 has another projection 75b extend-
ing from the periphery thereof at a location spaced a short
distance circumferentially from the first projection 75a,
defining a gate or notch 75c between projections 75a and 75b
which receive a stop pin or stub shaft 80 projecting forwardly
from ~he front frame plate 41 to define a first cocked or
armed position for the interconnected carrier plate 75 and
kicker arm 77 and a second release or trip position therefor.
The carrier plate also has a torsion trip spring 81 associated
therewith, coiled around the mounting post 76 and having a
pair of radlally outwardly extending end formations 81a and
81b. The en~ formation 81a abuts a stop pin 82 projecting
forwardly from the carrier plate 75 and the opposite radial
end formation 81b of the torsion trip spring is engaged by the
stop pin 83 projecting forwardly from the carrier plate 75 when
the dial gear 68 and dial 69 occupies hour indicating positions
a predetermined spring arming time period, such as several hours,
above the zero time position, so that when the dial 69 is above
this spring arming position, th~e torsion trip spring 81 is simply
captured in lightly stressed condition betwcen the stop pins
82 and 83 but does not contact the pin 84 of the dial gear 68
.
-15-
, 1 1116~'i4 - -
.
Il .
and thus cal)not cxcrt any biaiin(J Corcc on thc carriel platc,
. rclativc to thc dial gear, in this conditioll. Ilowcvcr, thc
trip sprill(J end portion 81a is ellqac3cd by thc di.al gcar pin 84
! projcctillg rcarw.lldly rom the dial cJcar Gg as the dial fi9 and
¦ dial. gear G'3 timc down toward ~cro pojitioll whcll thc cocki.ng
¦¦pin 84 pas:jcs thc stop pi.n 83 moving in a coullterclockwise
¦dircctioll as vic~cd in Fig.s. 1-9, at ~hc ipring arming timc,
to furthcr stress the torsion trip sprincJ 81 and cause it to
l¦e~ert resi].icllt bias.illg orce on tllc carricr platc 75 relativc
llto thc dial gcar G8, urcJill~ thc carricr platc 75 to movc in a
counterclockwisc dirccti.oll duc to thc force oE thc spring clld
portion 81a on tlle carrier plate pin 82.
Il The po.jiti.ons occupicd by the carricr plate 75 arc
¦Ircgulated by a lev(r and cam mechanism sllowll to the left of
¦~ the carrier platc 75 in Figs. 8 to 10. This mcchani.sm compriscs
a control cam 85 hdving a non-round opcning receiving thc
¦main stem ~5 therethrough to rotate in coordinatcd rclat;.o
Il with the main stem 48 and drive spring main gcar 49. ~ lal:cl
¦llevcr 8G is pivotally mounted on pivot post 57 to thc-front
jlErame platc ~11 antl has a cam ollowcr nosc formation 3Ga and
its midpo.rtioll projectillg Loward th( periphcry of the control
llcam B5 to bc cllgaged by the proj~ctions 85a and 35b on the
llcam pcriphcry as the cam rotates with the drive spring mai
l~gcclr 49 ancl stem L18 durinc3 timing down of the clockwork
llmc(ll<llli.sm or movcmcllt. The end portion oE thc l.atch lcvcr 36
I! opl)ositc tll(` pivoL post ~37 i.; pl:ovi~lcd with a latcll llO'.;C
Il ~ormati.on 8fil.~ cl~sposecl acljacell~ thc projcctioll 75a on the
¦jcarric~r p].aLc an~ ia cd whcll thc cam follo~:cr nojc 86a ridcs
on thc non-l)rojccti.llg portioll oE thc periphcry oE cam 85 .to
-lG--
l l l
665~L
'I '
! projc(-t ilicllltly towa~ thc cellter a;is of the earric?r pldte
75 beyon(l thc! p.lth of the outerMost end portion of the
earl-i.er pl.l~:e projeet:i.on 75a to restr.~ tllc earrier plIt:e
75 in c~iLIIel thc? eoeked po:ii.tion or thc release pOSitiOIl.
5 Assoeiated wi~h tlle ].ateh levc?r c36 is anotller lever c38
journale(l for roekin(~ movement on a mounting post or sleeve
surroundill(J tho m;lill stcm ~3, llavillcJ a follower pin f3f3a on
t.he lower end portion t]lereof as viewed in Fic3s. 3 to 10
Il ellcJacJi]lcJ a sllaped ;urfaee on l:he lowc r encl porLion of the
10 ¦ lateh lever 36, ancl havinc3 a slot or fork formdtioll 83b at
¦ tlle oppos.ite end por(:ion of the ].evc r 38 slidably reeei.vinc3
! the pin 56e projc::eti.nc3 .Eorwardly Lrom the upper end portion
¦¦ o~ tlle latell lc?ver f36. A eoil sprill-J '~9 is ~lso eollllc?etc?d
l between anehor pins 89a and 39b on the lateh lever '36 and
15 1 earrier plate 75, respeetively, biasin~3 the lateh lever f36
and earrier plate 7.5, toward eaell other. Tllis eoil.sprin(J f39
normally blases the earrier pl.ate 75 in a eloekwlse ctireetion,
Il as vic we(l in Figs. 8-10, with a smal]. sprillg foree suffieiellt
¦I to hold the earrier plate 75 in thc eoekecl positioll showll in
20 ¦¦ l ic3s. f3 so 1O1l9 as the dial 9ear pin f3~1 is spaee~cl in a eloekwise
dircetion ~or t:o the ri~Jht as viewed in Fig. ~'3) ~rom Lhe e l.r.rier
¦~ platc pin f33 alld thus t~le pin f34 is noL eoekin-~ or armincJ tae
¦ trip sprillg 81 si.nee it does not encJa(Je t:he sprincJ end portion
¦¦ f31L>. In th.i-i eondition, the eoil sprin~J c,~ e:certs adc?qute
25 l¦ foree on th- earrier o:Late 75 to retaill it in eocked posil:ioll,
Ij ;howll in Fi.<J. f3 witll the projeetion 75a abutti.;l-l the f.ront plate
il sLol> pin ~11.1 wllcnc~vcr Lllc control C~'llll pl-OjCCtl.C~lis ~;Sa or Ur)l
¦I C.nn ~IIC 1aLC~ VCI. f36 ~:o rc]~e~se poii~:ion eaeh ey. le of
¦I rota~i.c)ll oL the eontrol eam f35 durin-3 timin~J down, unti]. the
. -17- . .
-: .
.~ '
' ~
6654
Ij
I!
l last 3/~ CyClc? oL rotal-ioll oE eont.ro] cam 85 after projeetio
85a le.lveitllc? laLeh lever nose 8Ga and the dial (Jear pill 34
be(lins to aml the trip sprillg 81. Thc?ll, upon the ne.~t enc3acJe-
ment of the eontrol Caln projeetioll 85b wit:?l thc? latell lever
5 1¦ [ollower nos( $6a to retraet the ~ateh lever lateh nose 3G~2
from intc?rrerin~3 or latehill~l posit:ion relative to t:he earrier
plate projcctioll 75a, tlle stressillcJ of thc tril~ ;pring 81 by
the clial (3ear pill 8~1 is of su[fieiellt oree to ov reome the
l foree o t:he eoil sprillc3 89 and rapidly l~oree or kiek t]lC?
11 CarrLel PIL1tC 75 and the kieker arm or aetuator 77 eonnec~ted
I thc?rewit h, Lhrou(JIl the rancJe o anc~ular movemellL defined by
l~ cJate 75e to the trip position. Durinc3 this movement of the
! earrier l~late 75 and kieker arm 77, the kieker arm 77 hits the
~ abu~ll)ellt end 37 o the time loek earrier 3G rapidly shiftillc3
15 ¦ ';he earrier 3G to its release pOSitiOIl relative to the eontrol
1evc r 13 alld permittinc3 the eontrol lever 13 to shift forwardly
to swillc3 pivoted k!vc?r 31 dowllwclrdly aild allow the bloeking
melllber 18 to drop out of snubber bar bloeking posi tion.
To r c-:view the overall operation of thc? time loek, eaeh of
0 1l the timer units 15 are set to the apE)ropriatc time lap;~iC?, or
peilincJ time for tlle ne2ct working day, by insert:ion of tilC key 47
¦ into Lhe appropriate key reeeivin(3 OpC~ 35 27 in tlle front ~.all
oE the loek ease ll, to interit the soeket in thc key on the
Il main stem 48 o the al~propriate timc?r unit. The kc~y ~7 is the
25 1! rotatc d i . windill(3 or set ting direetion whiell is a eoullter-
eloekwise clireetioll as viewed in l ic3. 5 t:o rotate l:hc main stem
18 so a; to ~ind-up or store ellerc3y in tlle m.lin ~prillCI ~1(, ancl
eoneul3:ellt]y rotate the main c3-~ar 19 ancl the dial drivincJ
Il c3ear G7, both of wllieh are fi2~ed on the shaft 43, in a ec~unter-
30 ¦¦ eloekwise direetioll. The rotation of l:he clial drivillcJ CJ~ar 67
!l j
1~ -18-
` ~ '"
I ! 11166s4
WlliC'll is mC`jll('Cl wit,h ~h-` clial.cJear G3 fi.xed to the dial G9
eause-; the dial 69 to be rotatccl in a eloekwise direetion as
viewed in 1'ig. 3 progressively brill~Jil-(J indieia indieatinc3
l higller number of hours illtO alicJnmellt with the illdCX mark 71
S baek oE the mlcJnifiel- 70 . Such willdill~3 direetion rotcltioll of
the key ~17 and maill stem 93 and main cJear ~9 rotates the
¦ smal.L pini.on 50 and its assoeiat:ecl shart 51 and ratehet wlleel
il G9 in a e1Oekwise direetioll as viewed in Fi.g. 5 eausing the
Il ratehet 65 on the ~Jear 52 to be eamed out oE the notelles by
¦¦ the inelilled sur.faees of the notehes on the ratehet 64 without
! produeillg rotation of the ~Jear 52 ~n a eorresponding direetion
to the pinion 50. ~`he remailling pinions and (Jears of thc
. ~ gear train formed by cJc-~arS 53 55 5G 53 59 61 and 62 are
l noL drivell durin~3 this willdi.n(3 direetion movc~mellt.of the main
~ gear 99 bc?eause they are held by t:he eseapement rneehanism.
¦ If thc operator durinc3 setting of ally one of the three
tilllc?r units 15 (o:r less timer units if less thall three are pro-
vided) inadvertcnt1y overscts or overdrives the kcy and main
Il stem 93 to eause the dial cJear G3 and dial 69 to moVC to a
1! po!iition brin~Jing a hicJher number in alicJnment with the inclex
¦1 mark 71 then was intendc?d the opera~or ean simL~ly move thc?
¦¦ key 97 in tlle reverse direetion and sueh reverse direetio
l'.lOVCmCllt, WlliCll is eloekwi.se mov(~mellt as viewed i.n Fig. 5
¦l of the main gear 99 and thc! dial drivincJ gear 67 is allowed
1l by the meellani.sm oE the ~resent inventioll beea~lse the elutell
meehalli.sm 72 as oeiate(L witll the piniOIl 53 ancl~lc-ar 55 permi.t!;
Il the pillion 53 nlld its sh.l[t 59 to rota~:e ullcler ~dle inCluellee
¦¦ oE thc gear 52, wlliell is driven in a eoulltereLoekwls(? direetioll j
¦ witll the sh'aft 50 and pinion 51 beeause of the encJacJelllent of
il , . I
16654
.
Lhe pawl G5 with a ra(li.ll shou1cler of i:he ratelle~: teeth, while
the ~:emainillcJ gear; 55, SG, 5~3, G0, 6l all(? G2 eontlnue to be
held against movelllent by the eseapc?mellt meehallism.
l When eaeh of the timer units 15 have been set to thc? proper
5 ¦ time Lor openill(3 ol~ the loek the next workillc3 day, the key ~i7
i is withdrawn, alld the bloekin~3 member 13 of the time loek eon-
tinues to oeeupy the clown or release pociition so 1Onc3 as the
sllubber bar lG is ln its retraeted Ol releasecl position in the
¦I eylinder bore 17 overlyincJ the bk~ekin-J meml~er 113. This is true
10 il even thou(Jll tlle opc?rator may have posltionc?d the Iever 13 in
the rearwar(l OL loCkinCJ pos:i.tion WherCill its SllOllldCr 13.1
i enc3a(Jes the ~butment }~ortlon, sueh as thc? anc~1ed eorner of
¦ opellinc3 2'), of thc? earrier plate 35. Durin~3 this period of
¦~ time, the timer units 15 eontinue to time-down [rom their set
15 ¦ position toward thc? ~ero or trip time.
Also, durinc3 the settinc3 of eaeil timer unit, the rotatiorl of
, the key 47 in a di reetion eansill(J eaeh main (3ear ~19 to rot.lte
in the windinc3 or eoulltere1Oekwise direetion as viewed in Fic3. 5, j
Il a1so eaused the eontrol eam 35 to be rotated in a eou!lterek~ekwise
20 !I direetion as viewed in Fic3s. G and 3, with the resu1t tha(:
!l WhC?Il the projection 85b on the eontro1 eam 85 Cirst moved into
en(3ac3emellt witll the eam fol lowc?r nose ~36a o~ tlle 1ever ~G,
eausin~J the ~ever 36 to swin-3 away from the 1atehincJ pOsitio
l ShOWIl ill Fi~3. 8 and ret:raet i ts 1ateh nose or pro jeetion 3Gb
25 1l Erom latehillc3 relation with thc? earrier p1ate i~rojeet:30n 75b,
the eoi1 sl/] in(3 ~3~ e,~;erts suFfieiellt Loree Oll tl~(? carrier p1atc?
75 to cau':;c it t:o rotate in a e1Oekwise diLeetic~ll Lrem thc?
l Fic3. G pO'ii(:iOIl to thc? Fi~3, ~ vr latelled pOsitioll, wlle~ell~)on
¦¦ tilC r~t~llrn of tlle ;.?-tell llOSC? form.ltiorl !3Gi~ of tll(? 1c!vel- 36 to
Il -20-
ll l
11
.
,
1116~54
`1~
it s no~ ;l pSOi.tiOIl pl.lccs it in ~.atchi~ rcla~ioll to thc carrier
l platc projection 75a to holci t:hc carricr p]..ltc 75 in thi<i latched
l position. Further rotation of the kcy 47 ancl main st:cm 9f3, and
l tllc rurthcr consequc?nt rotation of the dial qc?ar 6S, causcs the
5 ~ dial gc?ar sprin~3 cockin(~ pin 84 to move in a clockwisc clirl ction
past thc stop pin ~33 of tllC carrier y1ate, so that furthcr
clockwisc movcmcnt of: thc! dial. cJ. ar GS and its pin S4 leaves Lhc
trip ;prialg ~31 in a rlollworkincJ condition with its oppositc cnd
I portions 51.1 and 31.b me~l-cly captured against: thc stop pill!i 52 .lnd
10 1 S3 of thc carricr platc, Wi.tllout their e~icrting an~ bilsinc3 efEect
on the carrier paltc rel.ativc to the dial (3ear 68 or Lront frame
plate 4L. Irl this conclition, the succcssivc cncJaqcment of the
I control cam projcctiolls S5a and S5b with thc latchlng lever nosc
~¦ 86a rctractl.ng thc 1atchillcJ ]ever SG to rloll1atchin(3 position
lS ~ twice cach rcvolutioll of thc main stem 48 cloes not pro(lucc any
movemcrlt oE the carrier plate 75 rom its 1atched po iition, as
l it rcmain s bias( d to that position by the coil si~r. incJ S9 .
! Wllell the timcr units t.ime-down to a timc sufficicntly
¦ close to .~.ero or tripyirlq time for t:hc dial qear sprinq c ockiny
20 i! pin 84 to mOVC? COUIlterClOCk~iisC past the carricr pl.atc 'ii Op pill
¦¦ S3 into en(Jagc?rncnt with the end portion Slb of the trip sprirl(3
B1, furtller movcmerlt of. the dia]. qell- 63 toward ~ero timc pro-
l gre isiv. l.y increaics tllc? sprincJ tensiorl forcc? o~ thc t-iy sprinq
! s~ and upon the ne:ct Cllga~JemCnt of a contrc)1 cam pl-OjCCtiOIl
25 ~ with the :latch levcr nose SGa, wllicll is the cam projection S5b,
Lo rctrclct thc 1atcll l.cvt?r cnc~ [ormation 8(jb frolll l.-ntclli.
¦ pOsi.t.Loll ho]dirlcl thc carricr platc projcc~ion 75a, thc C;ll I ic~r
pl.ltc i s now rotated rapid1y l~y the~ forcc storcd in thc sl)r~llc3 i31
~¦ irom Iho latcllo~l Yti tion o Lhe ~oleaGo y~si~:lon ovcr Ihc r.~ngo
-21-
. ~.
;5~ `
i
p( rmit:tccl l>y thc -;top pin UO in thc notc31 75c thus ca~lsLnJ
con ;ccluent rap~d rotatioll of tl-c kickcr .IL-M or carricr actuator
77 to hit thc al)utment ell(l surfacc 37 of thc carricr plate
arm i 36 (or whicllcvcr carrier arm 3G is L~rst hit by thc kicker
5 arlll 77 if all timcrs clo llOt trip sirnultalleousll) to effect
rapicl kickincJ of thc carricr paltc 35 to the rclcase position.
13ccause of the s~ rln~ forccd kickin(J action of ~:hc kicker arm
77 a~ thc ~cro relc.l.c timc preciic]y csctcrminecl by thc! CnC~a~JC-
l mcnt of tl-e control clm projectioll s35b with the followcr nose
10 1 , 86a of the latch levcr 53G e~ctremcly accuratc action to move
the time lock carricr pl.ltc 35 to relcasc positioll at the correct
i time is acllievcd avoidinc3 the variations ~lliCll llave bec n found
¦ to occur in rclease time ;ith time locks whereisl the carricr is
Il slliftcd to relcasc positioll by the convclltional proviiioll oE
15 ~ a ricJid L~in projectillc3 from the face of thc dial.
l~cfcrrir(J to FiJure 11 there is illustrated in fraqmclltary
¦I front clevation from a section pl.lne immediately forwardly oE the
jl carl ier asxembly a modifie~ carrier assembly useable in thc time
il ]ock of the presellt invention llavincJ a deadbolt latcll lev~ r
20 1 and rcleasc actu~tor therefor to relc<-sibly latch thc carricr
plate l1CI-C indicated by rcferellce charactcr 135 against
accidelltal or vibrational lateral movcmellt to the releacie
position.
[n thc cmbodiment shown in FicJure 11 thc carrier pl.ltc
25 135 llas tllc usllaL upw.lrclly curvinJ OL hook-sllapcd c:;tcnsic
l arlll5 136 tCrminatillJ in abut-mcllt elld surfaccs 131 to be
¦¦ cnJa Ic.l i~ the kickcr a~ms or carricr actllllor! 77 oL tllc
timcr Ullits oE the tLmc lock lnl hlvill-J thc samc ilot 123
--22--
I . ,'.
I
' ' :
. -
with aIl allJlcd corncl- or simil.Ir abutmcllt portioll lo coact
with thc abutmcIl~ shouldcl- 13a of ~hc pu;lI lcvcr ~3 in the
same m.1llncr as the slot 29 of thc caLricr 35 Or tl-c prcviously
describcd cmbodimcl-t to rclcaiibly lIolcI t:hc pusIl lcvcr 13 in
thc locking position and to relcase i~ to allow movclrent of
thc blockiI~J mc~mbcr 13 ~o tlle snubbcr b.Ir rcleasinc3 position
Wh('ll tll~ tirlcr Ullits timc dowl- to ~ ro tllllC In the cmbodllllcnt
¦I1llustl-atccl in Ii(Jurc 11 a clcadbolt latc}l lcvc~ 0 is pivotally
l supportecl on ancI ~mmcdiatcly rearwarIly o~ thc carricr platc 135
! bctwccn thc carricr platc 135 and a dcadbolt latch lcver plate
142 also mountccI on tlIe carrier platc 13 by mountinc3 scrcw~s 1~3
i extendin3 tl-rough slots in thc plate 142 allowinc3 a limitcd
i amount of lateral mov~ment of the plate 1~2 relative to the
carrier plate 135 Thc deadbolt latch levcr 1~0 has a latcll
! arm 1~15 cxtcndincJ thercfrom tcrminatinJ in a notclI 1~5a for
I¦ exaMple a ric3ht an<31e notclI or V--notch in thc outcr ;nd portion
¦I thcrco~ to cncJa(Je a corne]- of a ri3ht anu~3ular shouldcr foL-Illc;tion
¦l inclicatccI at 14G o[ tllc til~c lock casc Ior cxdIlli>lc in the lowcr
Il right lIal-d corncr portion thrrlof vicwcd ~ith rc[cl-cncç to l~i~ 2.
!¦ The latch arm portion 1~5 is norma~ly resilicn ly bia;cd cIown-
wardly or in a clockwisc dlrcction about thr pivot pin 1~11 by
sprincl l~l7 allclllas an ecccn~ric actu.Itill(J pi~ projcctiIl3
rcarwarcIly from a Iortion of thc dciIclbolt latclI lcver ll0 bclow
! and ncar thc pivot piIl 1~11 into a ;lot l~rJ in a lownw.lrcIly
! xtel)cli~<~ portioll lLl2a of tllc actuato-- p].Itr 112 Thc actu.ltor
~ plIt(` 1~12 also includcs intc(Jr.ll upw.lrdly curvlll(l ar~ ;53
¦~ IclI~ iC1~i11(3 ~lc ill.lL( of ~le cII-Licr ~l~t CXtCIl!;ioll
armi 13G ancl tcrmillatillCJ in al~l;Mcnt sur[.Iccs 15l ~hieh nolmally
. ,
ill6Bs~
prejcc~ sl~Jhtly Lo l:he lofL oL r in advancc o~ tho ~l~utmenL
¦ surf~acci 137 of ~llC carricr plate extelsion arms 136 so that
thc abutm(:llt elld portions 15~ of the actuat:or platc 142 will
be cngac3ccl by thc kicker arm 77 oE thc timcr units s1ic~11tly
S bcfore 1hc kickcr ann C'll(J.lCJeS thc abutment surfaccs 137 of
thc carrier p1atc 1.35. It wil1 bc apparent tllcrefore that
wll(n thc kickc~ rm 77 of one or more oE th~ timcr Ullits is
en(Ja{~e(l ancl shiEtcd to the riyht ai vicwcd in Fig. 11
l immccliatcly beEorc cnc~ayemcnt of thc trip arm 77 with thc
10 ~ ablltmcnt surface l37 oE the earrier L)1ate 135 tl~c actuator
plate 142 is swung to the le.Et eEfectinc3 a s1ic3}1t upward or
I countcrclock~isc movcmellt of the 1evcr l~0 bccause of movement
of thc slot 149 ancf conscquent movcmcnt of thc pin 148 to
the rigllt Witll thc clcl:-lator plate 142 cliscn3a3illc3 thc notch
145a oE tlle deadbo1t latch l.ever 140 from Llle ;top slloulcfer
I formltion l.46 ancl therehy freeinc3 the carrier plate 135 to
i be moved to the rigllt when the kicker arm 77 of onc or more
Il timcr unit:s cngages thc carrier plate stol surface or surfaces
Il 137 to eEfcct rc]easi.n~ movement of thc carricr pl.ltc 135.
-- 4--
. : ~
